228145112 has 16 divisors (see below), whose sum is σ = 460677840. Its totient is φ = 105297696.

The previous prime is 228145111. The next prime is 228145121. The reversal of 228145112 is 211541822.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228145111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1096748 + ... + 1096955.

It is an arithmetic number, because the mean of its divisors is an integer number (28792365).

Almost surely, 2^228145112 is an apocalyptic number.

It is an amenable number.

228145112 is an abundant number, since it is smaller than the sum of its proper divisors (232532728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228145112 is a wasteful number, since it uses less digits than its factorization.

228145112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2193722 (or 2193718 counting only the distinct ones).

The product of its digits is 1280, while the sum is 26.

The square root of 228145112 is about 15104.4732447047. The cubic root of 228145112 is about 611.0410530622.

Adding to 228145112 its reverse (211541822), we get a palindrome (439686934).

The spelling of 228145112 in words is "two hundred twenty-eight million, one hundred forty-five thousand, one hundred twelve".